Chris Molloy 

Advisory Board Member

Professor Chris Molloy has a 30 year international board and executive career across a unique range of life sciences R&D disciplines.

His career began in preclinical research at Glaxo, where he was closely involved with the industrialisation of high throughput discovery.

Chris is the non-executive chairman of Thriva – a pioneer in at-home diagnostics; Exploristics and NorthWest EHealth: two UK tech companies using Real World healthcare data to improve clinical development.

Hamish Grierson

CEO & Co-Founder 

Hamish is the co-founder of the UK's fastest growing digital health company Thriva.

Since 2016 Hamish has established Thriva as the UK market leader in remote testing, helping over 2 million people across the country manage their health through not only its direct-to-consumer service but partnerships with Government, NHS Hospitals, Insurers, GPs, private doctors and nutritionists.

In 2022 Hamish made the shortlist for the Scale-Up Entrepreneur of the Year at the 2022 Great British Entrepreneur Awards and Thriva ranked third in the Sunday Times 100 of London's fastest growing private companies. 

Tom Livesey

CTO & Co-Founder

Tom is responsible for product, technology, and data at Thriva.

Having worked on Thriva from the ground up for nearly 10 years, he enjoys working with the team to solve complex problems with robust and innovative technology solutions, all whilst creating great product experiences.

Prior to starting Thriva, Tom was CTO of a regulated financial technology platform powering mobile payments, as well as working with various companies, supporting on product and technology strategy.

Vishal Shah

Medical Director

Vishal is Medical Director at Thriva, and a practicing GP with 10 years experience working in the NHS. He has led the clinical development of Thriva's digital health platform and remote testing technologies, which have been used by the DHSC, and several NHS trusts. 

Prior to joining Thriva, he was Head of Medical Innovation at Healthily, where he led the development of their Artificially Intelligent symptom checker, designed to democratise accessibility to trusted health information in a safe and effective manner. 

Tamar Loach

Head of Data

Tamar is Head of Data at Thriva. She leads on maximising the health data insights and value we give back to customers through analytics, data science and machine learning.

She has experience in scaling tech companies from 10-person-strong startups to simulation Unicorn Improbable as a data scientist.

Tamar has also worked extensively across the science and innovation landscape at the science journal Nature and most recently as technology director in the UK-government backed Catapult Network.

Kathryn Granleese

Head of Strategic Partnerships- Pharma and Retail 

Kathryn is a highly accomplished Pharmacist and Healthcare Services leader with over 16 years' experience across the retail, pharmacy and healthcare sectors.

Prior to joining Thriva, Kathryn was in a strategic role at Superdrug, having progressed through patient-facing roles. Her expertise is in designing and delivering retail strategies, conceiving new healthcare services and developing client relationships to enable new commercial initiatives. 

Lissie Kallaway

Customer Success Manager 

Lissie is an experienced Customer Success Manager for Thriva’s B2B partnerships.

Before joining Thriva, Lissie worked in healthcare in both the clinical and procurement setting. Lissie has experience managing large healthcare accounts within the medical devices industry and implementing new technology into the healthcare space.